Nutrition Chapter 2 Notes PDF

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Nutrition Chapter 2 

How much of a nutrient is adequate? (DRI’s) o Set of four dietary assessment standards o Nutrient requirement  Amount of optimal health o Life stages and gender  16 for females and 10 for males o Influences on nutrient requirements- genetics, medications, etc

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Amounts o Mg= milligram  0.001 of a gram  0.000002205 of a pound o g= microgram  one thousandth of a milligram

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Estimated average requirement (EARs) o Meets physiological requirement 50% of healthy people o Not available for all nutrients

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Recommended dietary allowances (RDAs) o Derived from EARs o Estimate to meet 97% of healthy individual’s needs o Not available for all nutrients

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Adequate intake levels (AIs) o Not enough evidence to establish EAR

o Only AIs for life stage birth to 6 months 

Tolerable upper intake levels (ULs) o Highest level of usual daily intake likely to be safe

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AL’s and UL’s adequate and tolerable amount because there is a toxicity amount

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You want to be between the RDA and the UL (doesn’t want to go over the UL= that is toxicity level)

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Variety o Choose different foods (colorful)

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Balanced o Don’t overeat the same type of food

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Moderation o Control portion size (serving size= don’t overindulge)

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Malnutrition o Treatment is different o Primary malnutrition  Inadequate diet o Secondary malnutrition

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Adequate nutrient intake o Influential factor

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ABCD methods of nutritional assessment o Anthropometric measurement  Physical dimensions and composition  Easy and inexpensive  Height and weight  Circumferences

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 Body comp o Biochemical measurement  Lab analysis of biological sample o Clinical assessment  Medical history  Signs and symptoms o Dietary assessment  Food frequency  Diet record or food record  Food comp tables and diet analysis software  Portion size 

Hunger o Physiological drive

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Appetite o Physiological drive

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Influenced from other people you are around o Your parents like a certain food and make it for dinner and it’s unhealthy, you eat it because it’s what they made for dinner o You go out to eat for birthdays/holidays

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Routines influence

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Time influences

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Flavor, texture, etc influence

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Family or friends influence o Going out to dinner, etc

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Advertising influences...